just commiting work so far

src/data-buffer.h

@@ -0,0 +1,52 @@
+/* 
+ * File:   data-buffer.h
+ * Author: sam
+ *
+ * Created on 09 August 2014, 16:54
+ */
+
+#ifndef DATA_BUFFER_H
+#define	DATA_BUFFER_H
+
+#include <stdbool.h>
+#include <pthread.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#define BUFFER_LIST_WR_LOCK(l) data_buffer_list_lock(l, false, true)
+#define BUFFER_LIST_WR_UNLOCK(l) data_buffer_list_unlock(l, false, true)
+#define BUFFER_LIST_RD_LOCK(l) data_buffer_list_lock(l, true, false)
+#define BUFFER_LIST_RD_UNLOCK(l) data_buffer_list_unlock(l, true, false)
+    
+#define DATA_BUFFER_SIZE 16*1024
+    
+    typedef struct data_buffer_list {
+        struct data_buffer *first;
+        pthread_mutex_t *wrlock, *rdlock;
+    } data_buffer_list;
+    
+    typedef struct data_buffer {
+        char* buffer;
+        size_t size;
+        size_t wOffset, rOffset;
+        struct data_buffer *next;
+    } data_buffer;
+    
+    data_buffer_list* data_buffer_list_new();
+    void data_buffer_list_delete(data_buffer_list *list);
+    int data_buffer_list_append(data_buffer_list *list, const char* src, size_t n);
+    void data_buffer_list_lock(data_buffer_list *list, bool rd, bool wr);
+    void data_buffer_list_unlock(data_buffer_list *list, bool rd, bool wr);
+    
+    data_buffer* data_buffer_new(size_t size);
+    void data_buffer_free(data_buffer *buffer);
+    
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* DATA_BUFFER_H */
+